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| Pattern: | Clamp Type |
| Out-Wire: | 4-Wire |
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Safety Device Clamp Type Load Limited Switch
The crane limiter is the overload protection device of the crane. The overload operation of the crane is one of the important reasons for the accident of the crane. The excessive stress generated by the overload operation can damage the transmission parts, break the steel wire rope, deform the structure and fail the braking, resulting in the downward deflection of the main beam of the crane, cracks and desoldering of the upper cover plate and web plate of the main beam, It will also cause major accidents such as boom and tower body breaking, and also cause motor overload and motor burning of electrical system. Therefore, overload is invented as protection.
The clamp type overload limit switch, once the overload is confirmed, a high-frequency alarm will occur and the rising power supply will be automatically cut off, so as to protect the safety of people and mechanical devices. It is an ideal supporting product of the crane.
1, all the stations were set:
2, early warning: lifting weight reaches 90% of the rated lifting weight, intermittent sound and light alarm, but not to cut off the circuit.
3, delay emergency alarm: lifting weight reaches 105% of the rated lifting weight, delay for 2 seconds a continuous sound and light alarm, and cut off the circuit, but does not affect the decline.
1, immediately alarm point: lifting weight reaches 130% of the rated lifting weight, immediately issued a continuous sound and light alarm, and cut off the circuit.
2, using the environment: - 10 ° C ~ + 60 ° C, humidity below 90% RH.
3, power supply: ~ 380 v + 10%, 50 hz.
4, relay contact capacity: ~ 250 v, 10 a.
| Application: | 3.2-600T crane |
| Display Precision: | ≤5 F.S |
| Function: | 90% pre warning |
| 105% warning and closed the lifting up | |
| 110% closed hoisting immediately | |
| Temperature: | -15 to 60/≤90RH |
| IP class: | Sensor IP65, Instrument IP42 |
| Contact capacity: | AC250V, 10A |
| Power supply: | AC380V±10%, 50HZ |
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